Aself-contained underwater breathing apparatus (scuba) uses canisters containing potassium superoxide. the superoxide consumes the co2 exhaled by a person and replaces it with oxygen. 4 ko2(s) + 2 co2(g) n 2 k2co3(s) + 3 o2(g) what mass of ko2, in grams, is required to react with 8.90 l of co2 at 22.0 °c and 767 mm hg

52.0004 grams of mass of potassium superoxide  is required

Explanation:

Let moles carbon dioxide gas be n at 22.0 °C and 767 mm Hg occupying 8.90 L of volume.

Pressure of the gas,P = 767 mm Hg = 0.9971 atm

Temperature of the gas,T = 22.0 °C = 295.15 K

Using an ideal gas equation to calculate the number of moles.

n = 0.3662 mol

According to reaction, 2 moles of carbon-dioxide reacts with 4 moles of potassium superoxide.

Then 0.3662 mol of  of carbon-dioxide will react with:

of potassium superoxide.

Mass of 0.7324 mol potassium superoxide:

0.7324 mol × 71 g/mol = 52.0004 g

52.0004 grams of mass of potassium superoxide is required.

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

c.

explanation: